public static getColumnFormattingCallback()

in src/visual.ts [151:161]


    public static getColumnFormattingCallback(data: LineDotChartViewModel) {
        return (index: number, dataType: valueType): string | number => {
            if (dataType.dateTime) {
                return data.dateColumnFormatter.format(new Date(index));
            }
            else if (dataType.text) {
                return data.dateValues[index].label;
            }
            return data.dateColumnFormatter.format(index);
        };
    }